Method and apparatus for feeding and clamping thread in a thread

Details Method and apparatus for feeding and clamping thread in a thread Method and apparatus for feeding and clamping thread in a thread

1991-10-10

1993-09-28

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 5400

Patent

active

052481034

ABSTRACT:
A method and a device for feeding and clamping a thread in a thread winding device for textile machines are provided. The thread winding device comprises a bobbin frame with two legs to which two centering disks are rotatably connected. Between the centering disks the bobbins are received. One of the centering disks is outwardly pivotable together with the leg it is attached to against the force of a spring. The other centering disk is tiltably mounted at the respective leg of the bobbin frame. The feeding of the beginning of the thread to the bobbin is carried out via a forked gripping arm. One of the arms of the fork carries a clamping element for the beginning of the thread while the other arm is provided with an auxiliary roller. The gripping arm approaches the centering disk such that the auxiliary roller contacts the outer surface of the centering disk at an edge thereof and a lateral pressure is exerted onto the centering disk which results in a tilting movement of the centering disk. Due to the tilting movement a slot is created between the bobbin and the centering disk into which the beginning of the thread is automatically inserted. After the retraction of the auxiliary roller the slot is closed so that the beginning of the thread is clamped between the bobbin and the centering disk. Subsequently, the winding process starts.

REFERENCES:
patent: 3730447 (1973-05-01), Franzen et al.
patent: 4299357 (1981-11-01), Munker
patent: 4591105 (1986-05-01), Niederer
patent: 4595151 (1986-06-01), Slavik et al.
patent: 4603818 (1986-08-01), Luz et al.
patent: 4852823 (1989-08-01), Adams et al.
patent: 4878629 (1989-11-01), Grecksch et al.
patent: 5005776 (1991-04-01), Schwarz

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